Using the AWS Price List API

The Price List Service API (aka the Query API) and AWS Price List API (aka the Bulk
API) enable you to query for
the prices of AWS services using either
JSON (with the Price List Service API) or HTML (with the AWS Price List API). You
can also subscribe to Amazon Simple Notification Service
(Amazon SNS) notifications to get alerts when prices for the services change. AWS
prices change
periodically, such as when AWS cuts prices, when new instance types are launched,
or when
new services are introduced.